Can we please keep the formats in alphabetical order?
Translating I420_10LE to P010_10LE in wg_video_format_from_gst() doesn't seem like a very clear way to do things. I'd instead force the format in the callers. I'm confused, though, in what situation do we even need to handle I420_10LE at all, if we're going to force P010_10LE anyway?